胺基酸鹽被認為為目前二氧化碳捕獲非常具有潛力的新型吸收劑之一，其具有良好的反應性、低蒸氣壓、熱穩定性、低氧氣劣化性、低腐蝕性、環境友善及生物可分解性等優秀的性質，因此本研究將胺基酸鹽混搭醇胺類吸收劑，研究不同混搭配方之吸收劑性質，並以超重力旋轉床(Rotating Packed Bed, RPB)吸收串聯及再生技術，提升CO2捕獲量及氣體處理量，並降低再生能耗，將所開發出能長時間循環操作的吸收劑套入製程中，使吸收劑能更有效的捕獲CO2。
本研究探討的吸收劑醇胺類主要為二次乙亞胺(Piperazine, PZ)、二乙烯三胺(Diethylenetriamine, DETA)及乙醇胺(Monoethanolamine, MEA)；胺基酸鹽類經篩選後以乙二胺基乙磺酸鈉(2-[(2-Aminoethyl)amino]ethanesulfonate, Na ADS)為研究重點，批次吸收實驗結果顯示，PZ/Na ADS(15/25 wt%)的配方有不錯的吸收表現，Rich Loading可以達到0.83，一大氣壓再生Lean Loading降至0.61，再生效率為26.5%較PZ/DETA/Na ADS(15/15/10 wt%)高出5.45%，相對於傳統醇胺類的配方，由於胺基酸鹽類能與二氧化碳反應的基團除了胺基外，酸基也能與二氧化碳反應，因此二氧化碳吸收量上升。而RPB吸收實驗結果顯示只提升Na ADS的含量不會使捕獲效率變高，反而會有下降的趨勢，主因為黏度上升；另一個因素為水，水扮演可以與胺吸收劑提前反應的角色。
由腐蝕性質測試實驗中PZ/Na ADS(15/25 wt%)腐蝕力較PZ/DETA/Na ADS(15/15/10 wt%) Rich Loading下降了49.5%，而Lean Loading更較PZ/DETA/Na ADS(15/15/10 wt%) 下降了81.8%。原因除了因為Na ADS的磺酸根能有效降低腐蝕力以外，Na ADS在吸收二氧化碳時形成Bicarbonate，Bicarbonate會與鐵形成一層成份為FeCO3預鈍化層(Prepassive Film)，與醇胺類吸收劑之腐蝕機制相比腐蝕力較低，由腐蝕浸沒實驗中，分析吸收劑中的鐵離子含量也可以得到相似的結果。
RPB吸收串聯與再生連續操作實驗結果顯示PZ/Na ADS(15/25 wt%)於吸收劑損失及再生性質部分有良好的表現，捕獲量雖較PZ/DETA/Na ADS(15/15/10 wt%)下降了6.3%，但再生效率高於PZ/DETA/Na ADS(15/15/10 wt%)11.7%。而吸收RPB串聯與再生連續操作對比單一RPB與再生連續操作比較，所有配方的捕獲效率因為Lean Loading值上升，捕獲效率下降了5~10%，但整體捕獲量因為氣體處理量上升而有顯著的提升，進而增加了Rich Loading的值，降低了能耗。
綜合各吸收劑配方吸收效果、再生能耗、腐蝕力及氧氣溶解度之比較，本研究所提出PZ/Na ADS(15/25 wt%)於RPB吸收串聯與再生長時間連續操作製程中實為一具有發展潛力之吸收劑。

Amino acid salts are considered to be one of the most promising new absorbers for carbon dioxide capture, which has good reactivity, low vapor pressure, thermal stability, low oxygen deterioration, low corrosivity, environment-friendly and biodegradable and other excellent properties, so this study discusses the performance of different formula including amino acid salt blended with alcohol amine as absorbent, and to apply formula to high gravity rotating bed (Rotating Packed Bed, RPB) absorption in series and regeneration technology, which aims to enhance CO2 capture amounts, gas handling, and to reduce the energy consumption.
In this study, the alcohol amine were mainly Piperazine (PZ), Diethylenetriamine (DETA) and Monoethanolamine (MEA). The amino acid salts were screened with 2 - [Aminoethyl] amino] ethanesulfonate (Na ADS).In batch system the results showed that PZ / Na ADS (15/25 wt%) had a good absorption Performance, Rich Loading can reach to 0.83, an atmospheric pressure regeneration Lean Loading drops to 0.61, a regeneration efficiency of 26.5% is 5.45% higher than that of PZ/DETA/Na ADS (15/15/10 wt%), compared to conventional alcohol amines in addition to the amine group, the acid group can react with carbon dioxide, so the CO2 capture amounts is increased. The results of RPB absorption showed that only increasing the content of Na ADS did not make the capture efficiency higher, but there will be a downward trend, mainly due to the increase in viscosity; another factor for water, water can play an important role with amine absorbent.
The corrosion resistance of PZ/Na ADS (15/25 wt%) was 49.5% higher than that of PZ/DETA/Na ADS (15/15/10 wt%) by corrosion property test. Lean Loading is even lower than PZ/DETA/Na ADS (15/15/10 wt%) by 81.8%. In addition to the fact that Na ADS forms an alternative to iron when it react with bicarbonate, Bicarbonate will form a layer of FeCO3 pre-passivation film with iron, this pre-passivation film will prevent the mertrial from corrosion.Compared the amino acid salt corrosion mechanism to the alcohol amine, it shows lower corrosion rate. Dipping SS304 into different formula shows similar results.
In RPB+RPB abosrtion in series and RPB regeneration long term continuous operation showed that PZ/Na ADS (15/25 wt%) perform well in the absorbent loss and regeneration properties, although the CO2 capture amounts was lower than PZ/DETA/Na ADS (15/15/10% wt%) by 6.3%, but the regeneration efficiency was higher than PZ/DETA/Na ADS (15/15/10 wt%) by 11.7%. Compared with the single RPB absortion and RPB regeneration continuous operation, the capture efficiency of all the formula decreased by 5 ~ 10% because of the increase of the Lean Loading value, but the CO2 capture amounts was significant increase due to the increase of the gas treatment capacity, and the increase of the value of Rich Loading reducing energy consumption.
PZ/Na ADS (15/25 wt%), was used in the process of RPB+RPB absorption in series and RPB regeneration long term continuous operation, shows well absortion and regeneration properties, low corrosivity and low DO value, consider to be the most promising absorbent.

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